W1: S1 - The Bony Skull General Features Flashcards
What is the most common type of joint in the skull?
Sutural (fibrous)
What are the three divisions of the bony skull?
- The neurocranium
- The facial skull (viscera cranium)
- Mandible
What are the three parts of a skull bone?
- Periosteum
- Compact (cortical) bone
- Spongy (trabecular) bone
Which part of the skull bone houses red marrow?
Trabecular bone
Identify the coloured parts
Identify the labels
- Frontal bone
- Parietal bone
- Occipital bone
- Temporal bone
- Sphenoid bone
- Zygomatic bone
- Mandible
- Maxilla
- Vomer (inf. nasal concha)
- Nasal bone
- Lacrimal bone
- Ethmoid bone
What is this and which bones form it?
- Coronal Suture
- Frontal and Parietal
What is this and which bones form it?
- Lambdoid
- Parietal and Occipital
What is this and which bones form it?
- Occipitomastoid suture
- Occipital and temporal (mastoid part)
Identify the sagittal suture and what bones form it
- 2
- Left and Right Parietal bone
What type of bones is the facial skull (viscera cranium) made up of?
Irregular bones
Which bones form the zygomatic arch?
- Temporal
- Zygomatic
Which bone is the styloid process part of?
Temporal
Where is the mastoid process?
Temporal
Which bone are the occipital condyles a part of?
Occipital
What are the three fossae that divide up the floor of the skull?
- Anterior cranial fossa
- Middle cranial fossa
- Posterioir cranial fossa
Study the diagram of the sphenoid bone and look for
- Greater wing
- Lesser wing
- Pituitary fossa
- Body
Identify the different foramina and structures in the base of the skull
Identify the formina of the skull
What structures pass through the foramen magnum?
- Spinal cord
- Right and Left vertebral arteries
Also
- Meninges
- Anterior and Posterior spinal arteries
- CNXI
- Dural veins
What are the three ear ossicles?
- Malleus
- Incus
- Stapes
Which part of the temporal bone houses the ear ossicles?
Petrous part of the temporal bone
